Street lighting lamp with long life, high efficiency, and high lumen maintenance

A filling and halide technology, which is applied in the field of high-intensity discharge metal halide lamps, can solve the problems of reducing the operating life of the lamp and achieve the effect of long life

Inactive Publication Date: 2015-07-01
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such an increase in temperature may reduce the operating life of the lamp when operated at lamp level

Method used

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  • Street lighting lamp with long life, high efficiency, and high lumen maintenance
  • Street lighting lamp with long life, high efficiency, and high lumen maintenance
  • Street lighting lamp with long life, high efficiency, and high lumen maintenance

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Embodiment Construction

[0024] The present invention provides a lamp exhibiting a combination of: an aspect ratio greater than about 2.0 and less than about 4.8; an ionizable fill comprising a halide component having a sodium halide to rare earth halide ratio greater than about 8 and less than about 48; and oxygen cycle. The lamp provides a high intensity discharge lamp with higher efficacy and better color rendering than other similar lamps currently available.

[0025] An aspect of the exemplary embodiments relates to a lamp comprising a discharge vessel and electrodes extending into the discharge vessel. The lamp further includes an ionizable fill sealed within the vessel. The ionizable fill includes an inert gas and a halide component. The halide component includes at least one of calcium halide and strontium halide, sodium halide, thallium halide, and at least one of rare earth halides selected from the group consisting of lanthanum, cerium, praseodymium, samarium, and neodymium, and combinati...

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Abstract

A lamp includes a discharge vessel and electrodes extending into the discharge vessel. The lamp further includes an ionizable fill sealed within the vessel. The fill includes an inert gas and a halide component. The halide component includes a sodium halide, a thallium halide, at least one of a calcium halide and a strontium halide, and at least one of a rare earth halide. The rare earth (RE) halide is selected from the group consisting of lanthanum, cerium, praseodymium, samarium and neodymium, and combinations thereof. The fill establishes a Na / RE ratio of 8≰Na / RE≰48.

Description

technical field [0001] The present disclosure relates to discharge lamps, and more particularly to high intensity discharge (HID) metal halide lamps made of transparent ceramic arc chamber material. HID lamps have particular application in street lighting, but it will be appreciated that selected aspects may have application in the context of related discharge lamps encountering the same problems with lumen efficacy and lumen maintenance. Background technique [0002] High intensity discharge (HID) lamps are highly efficient lamps that can produce large amounts of light from a relatively small source. These lamps are widely used in many applications including road and road lighting, lighting of large venues such as stadiums, flood lighting of buildings, shops and industrial buildings, and projectors, to name a few. The term "HID lamp" is used to denote different kinds of lamps. These include mercury vapor lamps, metal halide lamps and sodium lamps. In particular, metal ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/12H01J61/33H01J61/82H01J61/28F21Y101/00
CPCH01J61/827H01J61/125H01J61/28H01J61/34H01J61/33
Inventor T·D·拉塞尔G·奥尔曼莱基G·米科维奇
Owner GENERAL ELECTRIC CO
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